OFDM frame synchronization in slotted ALOHA mobile communication systems

Jong Moon Chung; Dongfang Liu; Krishnaveni Ramasamy; Sriram Varadarajan

doi:10.1109/VTC.2001.956421

OFDM frame synchronization in slotted ALOHA mobile communication systems

Jong Moon Chung, Dongfang Liu, Krishnaveni Ramasamy, Sriram Varadarajan

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Wireless application of orthogonal frequency division multiplexing (OFDM) is gaining much attention as a modulation technique for high speed data transmission in various applications due to its good properties against frequency selective fading, intersymbol interference (ISI), and intercarrier interference (ICI). Although, there are still several issues related to synchronization and multiple access that require more research. In focus of this, in this paper, we investigate the performance of OFDM transmission through slotted ALOHA multiple access and compare the results to unslotted ALOHA OFDM systems. The results show that the OFDM slotted ALOHA technique has advantages in SNR, throughput, and frame synchronization performance compared to unslotted ALOHA with OFDM, which suggests slotted ALOHA as a candidate for multiple access for OFDM wireless communication applications.

Original language	English
Article number	28
Pages (from-to)	1373-1377
Number of pages	5
Journal	IEEE Vehicular Technology Conference
Volume	3
Issue number	54ND
DOIs	https://doi.org/10.1109/VTC.2001.956421
Publication status	Published - 2001

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/VTC.2001.956421

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abstract = "Wireless application of orthogonal frequency division multiplexing (OFDM) is gaining much attention as a modulation technique for high speed data transmission in various applications due to its good properties against frequency selective fading, intersymbol interference (ISI), and intercarrier interference (ICI). Although, there are still several issues related to synchronization and multiple access that require more research. In focus of this, in this paper, we investigate the performance of OFDM transmission through slotted ALOHA multiple access and compare the results to unslotted ALOHA OFDM systems. The results show that the OFDM slotted ALOHA technique has advantages in SNR, throughput, and frame synchronization performance compared to unslotted ALOHA with OFDM, which suggests slotted ALOHA as a candidate for multiple access for OFDM wireless communication applications.",

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AU - Ramasamy, Krishnaveni

AU - Varadarajan, Sriram

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OFDM frame synchronization in slotted ALOHA mobile communication systems

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